Call Toll-Free: 1-800-277-3458

My Cart:

0 item(s)

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

Water Filter Adapters & Couplers

Sometimes the smallest items can have the largest impact on the quality of your water.  At Discount Filter Store, you’ll find all the small water filter adapters and couplers you need, from diverter valves, automatic shut off valves, to refrigerator water filter caps, flow restrictors, and more; everything you need to keep your water filters operating at maximum efficiency. 

Searching for more water filter parts & accessories, check out our huge selection of mounting brackets, pumps & motors, drinking water test kits, and more.

3 Item(s)

Grid  List 

Set Descending Direction
  1. 155003 Pentek Water Filter Cartridge Coupler

    155003 Pentek Water Filter Cartridge Coupler

    For use with open-end water filter cartridges, 2.5 inches wide Learn More
    $3.99 Retail Price:  $11.49
  2. 2186494W Whirlpool Refrigerator Water Filter Cap - White

    2186494W Whirlpool Refrigerator Water Filter Cap - White

    For use in side-by-side refrigerator models from Whirlpool, KitchenAid, Maytag and Kenmore that use a quarter turn filter, installed in white the lower bottom grille Learn More
    $12.99 Retail Price:  $17.24
  3. 2260518W Whirlpool PUR Refrigerator Water Filter Cap - White

    2260518W Whirlpool PUR Refrigerator Water Filter Cap - White

    Replacement part designed to match caps used in the white bottom grille of Whirlpool, KitchenAid, Kenmore, Amana, Maytag and Jenn-Air side-by-side refrigerator models with a push-button filter Learn More
    $16.99 Retail Price:  $27.59

3 Item(s)

Grid  List 

Set Descending Direction
Scroll To Top